Home / 393,966.72-543,539.16-224,158.32

Finding the Fourth Proportional to 393,966.72, 543,539.16 and 224,158.32

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Solution

The fourth proportional to 393,966.72, 543,539.16 and 224,158.32 is: 309,261.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,966.72 : 543,539.16 = 224,158.32 : x
  2. Step 2: Convert to fraction form
    393,966.72/543,539.16 = 224,158.32/x
  3. Step 3: Cross multiply
    393,966.72x = 543,539.16 × 224,158.32
  4. Step 4: Simplify right side
    393,966.72x = 121,838,824,959.81
  5. Step 5: Solve for x
    x = 121,838,824,959.81/393,966.72
  6. Step 6: Final answer
    x = 309,261.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.